Dump wagon



vMard 9, 1943. R. G. LE TOURNEAU DUMP WAGON Filed Aug. 1, 194] 3 Sheets-Sheet 1 INVENTOR. E. Gleurneau awry-aout A TTORNEYS `March 9, 1943. R. G. LE TOURNEAU 2,313,078

DUMP WAGON Filed Aug. l, 1941 3 Sheets-Sheet 2 A TTORNEYS 3 Sheets-Sheet 3 R. G. LE TOURNEAU DUMP WAGON Filed Aug. 1, 1941 March 9, 1943.

INVENTOR.

R ,GILeTo'ur-neau ATTORNEYS Patented Mar. 9, 1943 miams DUMP WAGON Robert Gilmore Le Tourneau, Peoria, Ill., assigner to R. G. Le Tourneau, Inc., a corporation of California Application August l, 1941, Serial No. 405,037

9 Claims. (Cl. 298-27) This invention relates to improvements in dump wagons of that type in which the body slides rearwardly oil' the floor to dump, such as is shown in my Patent No. 1,969,933 dated August 14, 1934, and particularly represents improvements over the cable control arrangement shown in said patent.

In the structure of the patent the cable for effecting the rearward movement of the body was so connected to the body that a very long front extension of said body, and a correspondingly long supporting frame or tongue ahead of the body, was necessary `to attain the desired extent of rearward travel thereof. Also the moving pressure was imparted to the body only at a single substantially central point.

It is therefore the major object of the present invention to provide a cable structure for controlling the rearward movement of the body arranged so as to be more compact, and so that the pressure is imparted to the body equally on its opposite sides so that the strains are more evenly distributed. Also the cabling for the major portion of its extent, and all but the nal iairlead sheave, is concealed and protected, giving the structure a much neater appearance than was previously the case, and also making for longer wear of the cable.

These and other objects I accomplish by means of such structure and relative arrangement of parts as will fully appear by a perusal of the following specification and claims.

In the drawings similar characters of refer-' ence indicate corresponding parts in the several views:

Figure 1 is a side elevation of a dump wagon equipped with my improved control cable arrangement.

Figure 2 is a sectional elevation of the wagon.

Figure 3 is a plan view of the main frame or bed, the floor for the body being partly broken away and the tongue beam being mainly shown in section.

Referring now more particularly to the characters of reference on the drawings, the main frame or bed I of the wagon includes a hollow central longitudinally extending beam 2 which also forms a tongue for connection to a tractor, and side rails 3; the frame being supported near its rear end by wheels W. A flooring or platform covers the bed from its rear end forwardly a certain distance.

The body 5, of hopper-like form, is bottomless, its perimeter at the bottom being symmetrical to and substantially the same size as the flooring 4. Side rails 6 on the body extend from its rear end forwardly to terminations at posts 'l in front of and depending from the top of the body. These posts are rigid with the body and overlie the rails 3, and carry rollers 8 engaging the top, bottom and outer surfaces of the rails. The body rails 6 are engaged on their under side by rollers 9 mounted on the frame I at its rear end.

Rearward movement of the body from a position fully overlying the floor 4 to a full-dump position'relative thereto is controlled by the following means: Mounted in the tongue, preferably adjacent the foremost position of the posts l, is a fixed multiple sheave block 9, while rearwardly of the block 9 is a floating or sliding multiple sheave block II). A cable I I from the usual power control unit `on the tractor extends about a swivel fair-lead sheave l2 on the outside of the tongue directly above the block 9 to one of the sheaves of the latter, and then extends back and forth between the sheaves of. the blocks-9 and ID to a final anchor on the block 9. A power increase block and tackle unit is thus obviously formed. The pull on the cable therefore moves the block IIl forwardly.

Another cable I3 is connected centrally of its ends to the housing of the block I il, each run of said cable exending rearwardly in the tongue from the block, over a direction-changing pulley I4 at the rear end of the tongue, then forwardly and laterally to and about another directionchanging pulley I5 disposed adjacent but slightly below the rail 3, and thence forwardly parallel to said rail to a connection with the corresponding post 1 adjacent its lower end. It will thus be seen that with the forward movement of block I0, rearward movement is imparted to both posts 'l (which are rigid with the body) simultaneously, and that the travel of the body will be the same as that of the block I0. At the same time suiiicient power is obtained to move the loaded body rearwardly by reason of the multiple sheave block and tackle arrangement used.

The body is pulled forward when empty by a centrally disposed simple cable arrangement comprising, with a pull cable I6, a direction changing pulley I1 on the front end of the body 5. and another direction-changing pulley I8 mounted on the tongue adjacent the pulley I2.

yThe cable I6 extends from the tractor to and about the pulley I1, thence forward to and about the pulley I8 and rearwardly to an anchor on the body. No power increasing means other than that naturally provided by this arrangement is necessary, since the roller supported body being empty, moves quite easily.

From the foregoingdescription it will be readily seen that I have produced such a device as substantially fulfills the objects of the invention as set forth herein. Y

While this specication sets forth in detail the present and preferred construction of the device, still in practice such deviations from such detailmay be resorted to as do not form a departure from the spirit of the invention, as defined by the appended claims.

Having thus described my invention, what I claim as new and useful and desire to secure by Letters Patent is:

1. In a dump wagon which includes a bed frame having a oor thereon and a bottomless body mounted on the frame over the oor for longitudinal movement relative thereto;v a pull cable extending forwardly from the frame, an other cable having laterally separated ends, elements rigid with the body on which said cable ends are anchored, and cooperating connections between the cables arranged to cause a pull on the first named cable in a forward direction to impart simultaneous rearward movement to the ends of the other cable.

2. In a dump wagon which includes a bed frame having a fioor thereon and a bottomless body mounted on the frame over the floor foi` longitudinal movement relative thereto; a block and tackleunit on the frame including a sheave block movable lengthwise of the frame and a control cable to pull said block forward, another cable connected intermediate its ends on said block, means connecting the ends of said other cable to the body at laterally spaced points thereon and means on the frame guiding the runs of said other cable so that the ends thereof move rearwardly when the sheave block moves forwardly.

3. A structure as in claim 2 in which the frame includes a central longitudinal hollow beam; the block and tackle being enclosed in said beam.

4. In a dump wagon which includes a bed frame having a fioor thereon and a bottomless body mounted on the frame over the floor for longitudinal movement relative thereto; a block and tackle unit on the frame including a sheave block disposed intermediate the ends of the frame and arranged for movement lengthwise thereof and relative thereto and a control cable to pull said block forward, and means between said movable block and the body to pull the latter rearwardly with forward movement of the block.

5. In a dump wagon which includes a. bed frame having a floor thereon and a bottomless -body mounted on the frame over thevoor for longitudinal movement relative thereto; a block and tackle unit on the frame including a sheave block movable lengthwise of the frame and a control cable to pull said block forward, another cable connected intermediate its ends on said block. to provide two runs of said other cable, laterally spaced direction changing pulleys mounted on the frame rearwardly of the rearmost position of the sheave block and about which the runs of said other cable pass; said runs projecting forwardly from the pulleys, and means forming a connection between the ends of said runs and the body.

6. In a dump wagon which includes a bed frame having a floor thereon and a bottomless body mounted on the frame over the floor for longitudinal movement relative thereto; the frame including a central longitudinal hollow beam, a block and tackle unit including a front sheave block fixed in said beam, a rear sheave block movable lengthwise in the beam and a control cable extending between the blocks to pull the movable block forward, a fairlead sheave on the outside of the beam about which the cable passes from a point of pull to a sheave of the front block; there being means between the movable block and the body to move the latter rearwardly with forward movement of the movable sheave block.

7. In a dump Wagon which includes a bed frame having a oor thereon and a bottomless body mounted on the frame over the floor for longitudinal movement relative thereto, said frame including side rails, posts rigid with the body ahead of the same and depending past the rails laterally out from the same, cable runs connected at their forward ends on the posts below the rails and extending thence rearwardly, direction changing pulleys on the frame rearwardly of the posts about which the cable runs pass and maintaining the rearwardly extending portions of the runs substantially horizontal, other relatively close, direction changing pulleys about which the cable runs subsequently pass, said runs extending forwardly in close relationship to each other after passing about said pulleys, a control pull cable, and operative connections between the pull cable and said cable runs at their forward ends.

8. In a dump wagon which includes a bed frame having a floor thereon and a bottomless body mounted on the floor for longitudinal movement relative thereto; a member mounted for movement lengthwise of the frame, a pull cable to pull said member forwardly and connecting means'between the member and the body on opposite sides thereof to pull the body rearwardly upon forward movement of the member.

9. A structure as in claim 8, in which said connecting means comprises a pair of cable runs secured on and first projecting rearwardly from the member and then doubling back and extending forwardly to connections with the body on opposite sides thereof and direction-changing pulleys mounted on the frame and about which the cable runs pass at their point of doubling back.

ROBERT G. LE TOURNEAU; 

